Folks that are not Irish will be drinking Green beers on March 17th. On the 5th of May folks that have no Mexican ancestors or any idea what Cinco de Mayo means.
Dyngus Day needs equal attention!

Dyngus Day in America
Dyngus Day is observed in many Polish American communities, most notably in Buffalo, New York, which hosts the largest continuing event commemorating the day. The Buffalo Dyngus celebrations only started in the 1960s as an effort by the Polish-American community in the city to find a new focus for its identity. It proved hugely successful, to the point that a local newspaper claimed that "everybody is Polish on Dyngus Day".It has become a fusion of Polish and American traditions, with polka bands, a parade, and Polish food accompanying American patriotic songs sung in English. Party-goers dress up in the red-and-white colors of the Polish flag and carry balloons saying "Happy Dyngus Day" in English.
Dyngus Day is also celebrated annually in South Bend, Indiana and the surrounding region. People from South Bend and many visitors come to the area. Each bar is a bus stop for the day to ferry people to each bar.